private void LoadManufacturer()
        {
            var result = _manufacturerRepository.FindAll()
                         .Select(
                s =>
                new ManufacturerViewModel {
                ManufacturerID = s.ManufacturerID, Name = s.Name, CountryOfOrigin = s.CountryOfOrigin
            }).
                         ToList();

            result.Add(new ManufacturerViewModel
            {
                ManufacturerID = 0,
                Name           = "No Preferences"
            });

            lkManufacturer.DataSource = result;
        }